Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The Effect of Bearing Surface On the Survival of Cementless and Hybrid Total Hip Arthroplasty: An Analysis of Linked National Joint Registry and Hospital Episode Statistics Data.

JB & JS open access·2026
Same author

Infection following foot and ankle surgery : a subanalysis of data captured from the UK Foot and Ankle Thromboembolism (FATE) audit.

The bone & joint journal·2026
Same author

Obesity Reprogrammes Adipose Extracellular Vesicles to Induce Muscle Atrophy via miR-150-5p-Mediated Transcriptional Silencing.

Journal of cachexia, sarcopenia and muscle·2026
Same author

Drug-loaded nanoparticles for intra-articular injection.

PloS one·2026
Same author

The Profound Impact of the COVID-19 Pandemic on the Epidemiology of Quadriceps and Patellar Tendon Ruptures: Insights From a Single Trust in the United Kingdom.

Cureus·2025
Same author

Robotic-assisted total knee arthroplasty with MAKO is associated with improved functional outcomes : a systematic review and meta-analysis.

Bone & joint open·2025

Related Experiment Video

Updated: May 8, 2026

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System
03:49

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System

Published on: September 20, 2018

Measuring limb length discrepancy using pelvic radiographs: the most reproducible method.

Catriona Heaver, Jean-Pierre St Mart, Peter Nightingale

    Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
    |August 13, 2013
    PubMed
    Summary

    Measuring leg length inequality (LLI) after hip replacement is crucial. The study found measuring from the ischial tuberosities to the lesser trochanter is best, but significant errors persist.

    More Related Videos

    Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
    07:41

    Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse

    Published on: April 17, 2019

    In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
    07:43

    In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

    Published on: July 2, 2021

    Related Experiment Videos

    Last Updated: May 8, 2026

    Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System
    03:49

    Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System

    Published on: September 20, 2018

    Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
    07:41

    Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse

    Published on: April 17, 2019

    In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
    07:43

    In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

    Published on: July 2, 2021

    Area of Science:

    • Orthopedic Surgery
    • Radiology
    • Biomechanical Measurement

    Background:

    • Leg length inequality (LLI) is a common complication after total hip replacement (THR).
    • Surgeons utilize pre-operative planning, templating, and intraoperative measurements, including computer navigation, to minimize LLI.
    • Accurate radiographic measurement techniques are essential for assessing and managing LLI.

    Purpose of the Study:

    • To determine the most appropriate radiographic measurement technique for assessing leg length inequality from pelvic radiographs.
    • To evaluate the intra-observer and inter-observer variability of different measurement methods.
    • To assess the impact of pelvic positioning on measurement accuracy.

    Main Methods:

    • Three observers performed 9600 measurements on 100 pelvic radiographs.
    • Four reference lines were constructed: bisecting acetabular teardrops, ischial spines, inferior sacroiliac joint, and inferior obturator foramen.
    • Measurements were taken from these lines to the lesser trochanter and greater trochanter; pelvic positioning effects were studied using a synthetic pelvis.

    Main Results:

    • Measurement from the inferior ischial tuberosities to the medial lesser trochanter showed the best performance among the tested methods.
    • Despite improvements, significant error margins remain in leg length discrepancy measurements, even after accounting for magnification.
    • Pelvic positioning significantly influences measurement accuracy, highlighting variability challenges.

    Conclusions:

    • Measuring leg length inequality from the ischial tuberosities to the lesser trochanter is the preferred radiographic method.
    • Current radiographic techniques for LLI assessment, even optimized ones, possess inherent limitations and error margins.
    • Further research into standardized protocols and advanced imaging may be necessary to improve accuracy in managing leg length inequality post-THR.